Levi-Civita Symbol via Programming functions

#1 Posted: 2021/11/28 18:31:36

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I have a symbol that nearly works for all cases. At the moment I am not sure how to get the first IF statement to work.

Levi-Civita Symbol_try.sm (95.04 KiB) downloaded 955 time(s).

Thank you for your help in anticipation

Kind Regards,

John

#2 Posted: 2021/11/28 20:16:51

Alvaro

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Hi. The "E" in the first if isn't the same "E" than the others. You can see that looking that the bakground isn't gray, like in all others.

Best regards.
Alvaro.

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Oscar Campo 2021/12/1 23:54:00

#3 Posted: 2021/11/29 00:04:25

John Heidenreich

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Hi. The "E" in the first if isn't the same "E" than the others. You can see that looking that the bakground isn't gray, like in all others.

That fixed it Alvaro! ...

#4 Posted: 2021/11/30 12:12:24

Johannes Piel

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Hi John,

I did the same thing a few days ago, typing in a few less letters if you need it....

#5 Posted: 2021/11/30 18:33:30

John Heidenreich

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Hi John,

I did the same thing a few days ago, typing in a few less letters if you need it....

Your solution is more efficient than mine Jopi, yes please post your code,

thank you,

Kind Regards, John

#6 Posted: 2021/12/1 07:17:49

Johannes Piel

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Levi-civita.sm (8.47 KiB) downloaded 943 time(s).

Does anyone know how to summarize the result into a single vector?

Best regards

#7 Posted: 2021/12/1 15:22:31

Jean Giraud

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Does anyone know how to summarize the result into a single vector?

I don't understand much in there.
As it looks your are solving Cross Product ... is it ?
Cheers ... Jean

Levi-civita [Not Sure].sm (12.48 KiB) downloaded 764 time(s).

#8 Posted: 2021/12/2 05:48:51

John Heidenreich

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Wrote
Does anyone know how to summarize the result into a single vector?

I don't understand much in there.
As it looks your are solving Cross Product ... is it ?
Cheers ... Jean

Levi-civita [Not Sure].sm (12.48 KiB) downloaded 764 time(s).

Here is the cross product Jean and also Jopi, so you are pretty close to the money.

and here is a bit more again, this time the determinant:

Here is the wedge product i am particularly interested in, see the similarity to axb?

#9 Posted: 2021/12/2 10:06:11

Jean Giraud

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Here is the cross product Jean and also Jopi, so you are pretty close to the money.

Thanks John ...more in there from lot more convivial Smath
Shitting snow today, not to scare the bear ... Jean.

Maths vminor [cofactors].sm (40.18 KiB) downloaded 783 time(s).

SMath

Levi-Civita Symbol via Programming functions

Levi-Civita Symbol via Programming functions - Attempting to get first of 3 IF statements to work. - Messages

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Levi-Civita Symbol via Programming functions - Attempting to get first of 3 IF statements to work. - Messages